openbr not working on ubuntu 18.04

[satetheus]

I've been trying to install openbr on an ubuntu 18.04 system for 2 weeks now.
I have gotten to the point where openbr builds, but I can't do anything with it.

If i try to run the example:

br -algorithm FaceRecognition -compare me.jpg you.jpg

with any set of pictures, it fails with:

Set algorithm to FaceRecognition
Loading /usr/local/share/openbr/models/algorithms/FaceRecognition
Fatal: Failed to set br::Transform* br::IndependentTransform::transform to: 
  SDK Path: /usr/local
  File: 
  Function: 
  Line: 0

The system is ubuntu 18.04, the opencv is 2.4, the qt is 5.9.5. The exact installation instructions I did can be found here.

[pinaa]

I downloaded your build script code and am running it now because I couldn't get OpenBR to work with opencv 3.2.0, but was too lazy to install opencv 3..4.5 which is required by the openbr/CMakeLists.txt file.
Your scripts just finished and Iwas able to bring up the GUI with br-gui from my terminal running Bash. The stdout messages were,
qt5ct: using qt5ct plugin
D-Bus global menu: no
Set enrollAll to true
Set algorithm to FaceRecognition
Warning: QObject::connect: No such signal br::TemplateViewer::newInput(File)
SDK Path: /usr/local
File:
Function:
Line: 0
which makes sense since I don't have any files dropped into the GUI at this point. I am running Ubuntu 20.04.1 LTS with the latest utils and dev tools.

[pinaa]

Okay, it crashed. drag-n-drop didn't work and when I clicked on File -> Clear, the stdout/stderr was,
Warning: QObject::connect: No such slot br::TemplateViewer::setFile(File)
SDK Path: /usr/local
File:
Function:
Line: 0
Loading /usr/local/share/openbr/models/algorithms/GenderClassification
Loading /usr/local/share/openbr/models/algorithms/AgeRegression
Fatal: Failed to set br::Transform* br::IndependentTransform::transform to:
SDK Path: /usr/local
File:
Function:
Line: 0
Aborted (core dumped)
Same results with commandline,
$ br -algorithm FaceRecognition -compare IMG_20170517_080315_3.jpg IMG_20170517_080315.jpg
Set algorithm to FaceRecognition
Loading /usr/local/share/openbr/models/algorithms/FaceRecognition
Fatal: Failed to set br::Transform* br::IndependentTransform::transform to:
SDK Path: /usr/local
File:
Function:
Line: 0
Aborted (core dumped)
Back to troubleshooting.